Home / 20,231.80-30,344.03-5,437.26

Finding the Fourth Proportional to 20,231.80, 30,344.03 and 5,437.26

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Solution

The fourth proportional to 20,231.80, 30,344.03 and 5,437.26 is: 8,154.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231.80 : 30,344.03 = 5,437.26 : x
  2. Step 2: Convert to fraction form
    20,231.80/30,344.03 = 5,437.26/x
  3. Step 3: Cross multiply
    20,231.80x = 30,344.03 × 5,437.26
  4. Step 4: Simplify right side
    20,231.80x = 164,988,300.20
  5. Step 5: Solve for x
    x = 164,988,300.20/20,231.80
  6. Step 6: Final answer
    x = 8,154.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.